Happy in ANY (even a violent) relationship? #2

Hi again,
Thank you for your response to my question regarding the potential of being happy in any relationship, particularly with someone who is physically violent, deceitful (steals my money and gambles it), and is not present for our children. I understand that circumstances are neutral and that we choose our thoughts which create out feelings. However, I do not understand how we can me happy in a relationship that causes physical pain and physical injury. We think about the violent abuse differently, and re-think the bruises on our bodies, and the pain, and perhaps a fractured bone, and then we are happy although we are perpetually attacked and beat up? Please explain. Thank you.